On Reading the Kama Sutra at 56

Perhaps I may be overreaching
My flexibility this way.
She says, "Think of a whale, breaching,
In the waters of the bay."
This seems an insult, somehow. Like I
Am really just a fish, a sockeye,
Whose troubles jumping back upstream
Reflect on my inferior genes.
Oh, wait—she said not fish but mammal.
That makes things all OK, I guess:
I sow not milt, sink seed in nest
(Though after very pleasant trávail).
My yearning for her yoni's clear;
My lingam, sorely, perseveres.